Analysis

  • max time kernel
    107s
  • max time network
    83s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    26-05-2024 02:32

General

  • Target

    XClient.exe

  • Size

    183KB

  • MD5

    2b2588dbc679d917268e4ec17783db91

  • SHA1

    5d3d9b5e548972155ebf7fb8506eeb87ee8d1c85

  • SHA256

    a089baba4b046b231c5008343025b97f47bab795bdebd0fb47c608053ba4d8b8

  • SHA512

    11615bbf4477ad683b5cfd5ecf1fbffb7ec957a76b47c012de67f7540ac26b42e63c965cbc028da9430a43f340b4889c5b80de416f83364d6b8d1783c41f4c86

  • SSDEEP

    3072:JMf71a4l72Me/sigR1b60M7MDVOyFMgBz65/M6If+3Js+3JFkKeTno:JyPrbjM7KxBt25

Malware Config

Extracted

Family

xworm

Attributes
  • Install_directory

    %AppData%

  • install_file

    Spoofer.exe

Signatures

  • Detect Xworm Payload 1 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Drops startup file 2 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\XClient.exe
    "C:\Users\Admin\AppData\Local\Temp\XClient.exe"
    1⤵
    • Drops startup file
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2220
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\XClient.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2924
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2680
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\Spoofer.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2516
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Spoofer.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3028

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

    Filesize

    7KB

    MD5

    3b77937c3ddcafa72efad70593cd5fd0

    SHA1

    266dcc1e19284acb275c14d44a126ca50d4d115c

    SHA256

    7498468f3a2c3e351537886b0fa9bb29203b7a8e0360f43f71ca4e9d052143ab

    SHA512

    1a36bb47454d366c57bf2497c08e21435f0e6d6001a68ab590e6bf9ebf1484a046641f77f510fb73aec1491ce0c4079b06386f5280535bc8e30375b2b28f7c60

  • \??\PIPE\srvsvc

    MD5

    d41d8cd98f00b204e9800998ecf8427e

    SHA1

    da39a3ee5e6b4b0d3255bfef95601890afd80709

    SHA256

    e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

    SHA512

    cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

  • memory/2220-0-0x000007FEF5793000-0x000007FEF5794000-memory.dmp

    Filesize

    4KB

  • memory/2220-1-0x0000000000120000-0x0000000000154000-memory.dmp

    Filesize

    208KB

  • memory/2220-2-0x000007FEF5790000-0x000007FEF617C000-memory.dmp

    Filesize

    9.9MB

  • memory/2220-31-0x000007FEF5793000-0x000007FEF5794000-memory.dmp

    Filesize

    4KB

  • memory/2220-32-0x000007FEF5790000-0x000007FEF617C000-memory.dmp

    Filesize

    9.9MB

  • memory/2680-14-0x000000001B650000-0x000000001B932000-memory.dmp

    Filesize

    2.9MB

  • memory/2680-15-0x00000000027F0000-0x00000000027F8000-memory.dmp

    Filesize

    32KB

  • memory/2924-7-0x000000001B580000-0x000000001B862000-memory.dmp

    Filesize

    2.9MB

  • memory/2924-8-0x0000000002140000-0x0000000002148000-memory.dmp

    Filesize

    32KB